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Related Experiment Video

Updated: Jul 1, 2026

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles
11:54

Microfluidic Platform with Multiplexed Electronic Detection for Spatial Tracking of Particles

Published on: March 13, 2017

A digital microfluidic platform for cell-based non-invasive testing.

Dylan Siriwardena1,2, Michael D M Dryden1,2,3, M Dean Chamberlain1,2,4

  • 1Department of Chemistry, University of Toronto, Toronto, ON, Canada.

Iscience
|June 30, 2026
PubMed
Summary
This summary is machine-generated.

This study introduces a novel method using digital microfluidic isolation of single cells for omics (DISCO) to identify fetal cells in cervical swabs for prenatal genetic diagnostics, improving upon invasive methods.

Keywords:
biological sciencesbiological sciences research methodologiesdevelopmental geneticsdiagnostic procedurefluidicsomics

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Area of Science:

  • Reproductive Biology
  • Genetics
  • Biotechnology

Background:

  • Current prenatal genetic diagnostics require invasive procedures with risks like miscarriage.
  • Cervical mucosa is a potential source of fetal cells, but fetal cell numbers are very low.
  • Existing methods struggle to isolate sufficient fetal cells from cervical samples for diagnostics.

Purpose of the Study:

  • To develop and validate a digital microfluidic isolation of single cells for omics (DISCO) system for collecting fetal cells from cervical mucosa.
  • To identify specific markers for fetal cells within cervical samples.
  • To enable non-invasive prenatal genetic diagnostics using cervical cell samples.

Main Methods:

  • Application of the DISCO platform to isolate single cells from transcervical swabs.
  • Transcriptomic analysis of placental and cervical swab samples to identify fetal cell markers.
  • Integration of placental and swab transcriptomes to define a 147-gene marker signature for fetal cells.

Main Results:

  • The DISCO system successfully collected putative fetal cells from transcervical swabs.
  • Transcriptomic analysis identified a specific set of 147 marker genes characteristic of fetal cells.
  • Isolated cell collections contained both fetal and maternal DNA, confirming successful cell capture and differentiation.

Conclusions:

  • The DISCO system provides a viable method for identifying and collecting fetal cells from cervical mucosa.
  • Identification of novel fetal cell markers enhances the potential for non-invasive prenatal genetic testing.
  • This approach offers a promising alternative to invasive prenatal diagnostic procedures.